<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>05.form_fields | KnockOut</title>
  <script src="../assets/knockout-3.5.1.js"></script>
</head>
<body>

  <!-- ko foreach: items -->
  <input
    type="checkbox"
    data-bind="checkedValue: $data, checked: $root.chosenItems"
  />
  <span data-bind="text: itemName"></span>
  <!-- /ko -->

  <script type="text/javascript">
    var vm = {
      items: ko.observableArray([
        { itemName: "Choice 1" },
        { itemName: "Choice 2" }
      ]),
      chosenItems: ko.observableArray()
    };

    ko.applyBindings(vm);
  </script>

</body>
</html>